CVE-2018-0114 PoC — Cisco node-jose open source library 数据伪造问题漏洞

Source

Associated Vulnerability

Description

POC for CVE-2018-0114 written in Go

Readme

# CVE-2018-0114 POC

A vulnerability in the Cisco node-jose open source library before 0.11.0 could allow an unauthenticated, remote attacker to re-sign tokens using a key that is embedded within the token. The vulnerability is due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). This standard specifies that a JSON Web Key (JWK) representing a public key can be embedded within the header of a JWS. This public key is then trusted for verification. An attacker could exploit this by forging valid JWS objects by removing the original signature, adding a new public key to the header, and then signing the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.

https://nvd.nist.gov/vuln/detail/CVE-2018-0114

## Usage

```bash
go run main.go -payload admin
```

## References

https://openid.net/specs/draft-jones-json-web-key-03.html#anchor8

![](https://raw.githubusercontent.com/adityathebe/POC-CVE-2018-0114/master/rsa-specification.png)

File Snapshot

 [4.0K]  /data/pocs/04256bb9a65f0d3acd5705bf0fb793ab535b990e
├── [3.1K]  main.go
├── [1.0K]  README.md
└── [ 61K]  rsa-specification.png

0 directories, 3 files

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